A full page ad in The Wall Street Journal can cost as much as $354,823, a high price tag for most startups. But Eidoo, which provides an app for cryptocurrency investors to store their various coins and tokens, appears to have cash to spare. So far, it has raised more than 79,000 ether tokens in an initial coin offering, according to its website. That’s worth roughly $23,700,000.

ICOs allow startups to raise money by issuing their own cryptocurrencies.Recently, ICOs have come under scrutiny from regulators because companies can use them to raise quick money without having to disclose substantive information to investors.

They’ve become a darling of blockchain and cryptocurrency startups looking to raise cash without having to go through the traditional avenues of venture capital or an initial public offering.